Method of and apparatus for dynamically and adaptively controlling system control parameters in a digital image capture and processing system
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Abstract
An automatic digital video image capture and processing system supporting image-processing based code symbol reading during a pass-through mode of system operation at a retail point of sale (POS) station. The system comprises an automatic object direction detection subsystem, disposed in its housing, as well as an illumination subsystem, an image formation and detection subsystem, an automatic illumination control subsystem, a digital image capturing and buffering subsystem, a digital image processing subsystem, and a system control subsystem. During system operation, the automatic object direction detection subsystem automatically detects the presence and direction of movement of the object in the field of view (FOV), and in response thereto, generates a first signal indicating a triggering event and a second signal indicating the direction of movement of the object with respect to the FOV. The system control subsystem is responsive to the first and second control signals, and controls and/or coordinates the operation of the subsystems above system so as to support image-processing based code symbol reading during the pass-through mode of system operation at the retail POS station.
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Citations
314 Claims
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1-291. -291. (canceled)
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292. :
- An automatic digital video image capture and processing system supporting image-processing based code symbol reading during a pass-through mode of system operation at a retail point of sale (POS) station, comprising;
a housing supportable on a countertop surface at a point-of-sale (POS) station or other work environment, and including an imaging window;
a digital image formation and detection subsystem, disposed within said housing, and having (i) image formation optics for projecting a field of view (FOV) from an area-type image detection array, through said imaging window, and upon an object to be imaged during object illumination and imaging operations, and (ii) said area-type image detection array for detecting frames of digital video data of the object during said object illumination and imaging operations carried out while said automatic digital video image capture and processing system is configured in pass-through mode of operation;
an automatic object direction detection subsystem, disposed in said housing, for automatically detecting the presence and direction of movement of the object in said FOV, and in response thereto, generating a first signal indicating a triggering event and a second signal indicating the direction of movement of said object with respect to said FOV;
an illumination subsystem, disposed within said housing, and having an illumination array for producing and projecting a field of illumination within said FOV during said object illumination and imaging operations;
an automatic illumination control subsystem, disposed within said housing, for controlling said illumination array during said object illumination and imaging operations;
a digital image capturing and buffering subsystem, disposed within said housing, for capturing and buffering said frames of digital video data in memory, during said object illumination and imaging operations;
a digital image processing subsystem, disposed in said housing, for processing said frames of digital video data and reading one or more 1D and/or 2D code symbol graphically represented in said frames of digital video data, and producing symbol character data representative of said read one or more 1D and/or 2D code symbols;
an input/output subsystem, disposed in said housing, for transmitting said symbol character data to an external host system or other information receiving or responding device; and
a system control subsystem, disposed in said housing, and responsive to said first and second control signals, for controlling and/or coordinating the operation of said subsystems above. - View Dependent Claims (293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314)
- An automatic digital video image capture and processing system supporting image-processing based code symbol reading during a pass-through mode of system operation at a retail point of sale (POS) station, comprising;
Specification